— 45 —
VIN
EN
CDEL
GND
RES
CN
VOUT
1
2
3
4
REFERENCE
VOLTAGE
ERROR
AMP
OVER CURRENT
LIMITTER
OVER HEAT
PROTECTION
ON / OFF
RESET
GEN
5
6
7
IC701 LA5602
VCC
MUTE
VINL
VGL
VO1
VO2
VCC
VIN4
VG4
VO8
VO7
VREF
11k
Ω
11k
Ω
11k
Ω
11k
Ω
1
1
2
3
4
5
6
VO3
VO4
VG2
VIN2
REG OUT
REG IN
7
8
9
10
11
12
24
23
22
21
20
19
VO6
VO5
VG3
VIN3
CD
RES
18
17
16
15
14
13
+
-
+
-
LEVEL
SHIFT
LEVEL
SHIFT
BTL
DRIVER
BTL
DRIVER
BTL
DRIVER
BTL
DRIVER
LEVEL
SHIFT
LEVEL
SHIFT
REGULATOR
RESET
Vcc
IC103 LA6541
IC601 BA6780
VIN2
FIN2
RIN2
CT2
VEE
FBIN-
FBIN+
OUT2+
OUT2-
VIN1
FIN1
FWD/REV CONTROLLER
COVERNER
LOAD CURRENT
DETECTION
AMPLIFIER
COVERNER
OUTPUT
LOW VOLTAGE
OUTPUT
VCC
VCC
OUT1+
+-
OUT1-
18
17
16
15
1
2
7
8
9
14
13
12
11
10
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TEL 13942296513
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299